The multiple-fiber push-on (MPO) connectors on the optical QSFP+ or QSFP28 transceivers support network
interface cables with either physical contact (PC) or ultra-physical contact (UPC) flat polished face types.
The MPO connectors on the optical QSFP+ or QSFP28 transceivers do not support network interface cables
with an angle-polished contact (APC) face type.
Note
Step 1
Remove the dust plugs from the optical network interface cable MPO connectors. Save the dust plugs for future use.
Step 2
Inspect and clean the MPO connector’s fiber-optic end faces.
Step 3
Remove the dust plugs from the QSFP+ or QSFP28 transceiver module optical bores.
Step 4
Immediately attach the network interface cable MPO connectors to the QSFP+ or QSFP28 transceiver module (see the
figure below).
Figure 19: Cabling a 40-Gigabit QSFP+ or QSFP28 Transceiver Module
Remove the 100-Gigabit QSFP28 Transceiver Module
The QSFP+ or QSFP28 transceiver module is a static-sensitive device. Always use an ESD wrist strap or
similar individual grounding device when handling QSFP+ or QSFP28 transceiver modules or when coming
into contact with modules.
Caution
To remove a QSFP+ or QSFP28 transceiver module, follow these steps:
Step 1
For optical QSFP+ or QSFP28 transceiver modules, disconnect the network interface cable from the QSFP+ or QSFP28
transceiver connector.
Step 2
For QSFP+ or QSFP28 transceiver modules equipped with a bail-clasp latch (see the below figure, top view):
a) Pivot the bail-clasp down to the horizontal position.
b) Immediately install the dust plug into the transceivers optical bore.
c) Grasp the sides of the QSFP+ or QSFP28 transceiver and slide it out of the module socket.
Step 3
For QSFP+ or QSFP28 transceivers equipped with a pull tab latch (see the below figure, bottom view):
a) Immediately install the dust plug into the transceiver’s optical bore.
b) Grasp the tab and gently pull to release the transceiver from the socket.
Cisco NCS 540 Router Hardware Installation Guide
37
Install the Device
Remove the 100-Gigabit QSFP28 Transceiver Module
